CAJ | 학술논문

针对惯性元件误差调制后无法定量分析惯导系统误差的问题，提出了一种根据船用单轴旋转捷联式惯导系统定位精度指标确定惯性元件精度要求的设计方法。该方法针对单轴单向旋转和单轴往复旋转2种捷联惯导系统，以传统捷联惯导系统误差传播方程为基础，建立了导航定位误差与常值漂移误差、标度因数误差和安装误差的对应关系式。文中给出了具体的算法推导过程及简化分析依据。设计实例和计算机仿真的对比分析证明了该设计方法的正确性和可行性。该设计方法为其他方式的单轴旋转惯导捷联惯导系统设计提供了有效的参考依据。
침대관성원건오차조제후무법정량분석관도계통오차적문제，제출료일충근거선용단축선전첩련식관도계통정위정도지표학정관성원건정도요구적설계방법。해방법침대단축단향선전화단축왕복선전2충첩련관도계통，이전통첩련관도계통오차전파방정위기출，건립료도항정위오차여상치표이오차、표도인수오차화안장오차적대응관계식。문중급출료구체적산법추도과정급간화분석의거。설계실례화계산궤방진적대비분석증명료해설계방법적정학성화가행성。해설계방법위기타방식적단축선전관도첩련관도계통설계제공료유효적삼고의거。
According to the problem that the navigation error of strapdown inertial navigation system ( SINS) cannot be calculated quantitatively because of modulation of inertial sensor error, this paper proposed a method which can confirm the precision requirement of inertial sensor according to the positioning precision index of ship-borne single-axis rotation SINS. By using the error propagation function of the conventional SINS, this method establishes the e-quation reflecting relationship between navigation position error and constant drift error, scale factor error and in-stallation error for single-axis continuous rotation SINS and the to-and-fro rotation SINS. In the paper, specific algo-rithm developing procedures and basis used for simplifying analysis are illustrated. Through comparing the design examples with computer simulation, the results show that the designing method is correct and practicable, and can provide effective reference for system design of other single-axis rotation SINS.